
  .box {
    position: relative;
    width: 100%;
    height: 100%;
    background-image: url('../img/bg.jpg');
    background-size: 100% 100%;
  }
  .box .header {
    display: flex;
    align-items: center;
    height: 80px;
    background-color: rgba(20, 20, 10, 0.5);
  }
  .box .header h1 {
    font-size: 30px;
    color: white;
    margin-left: 50px;
  }
  .box .footer {
    position: absolute;
    width: 300px;
    height: 40px;
    text-align: center;
    bottom: 10px;
    left: 50%;
    margin-left: -150px;
  }